Apparatus for molding, vulcanizing, and finishing rubber boots or shoes.



.No. 896,224. PATENTEDAUG. 18, 1908.

4 J..W., v. MASON.

APPARATUS'POR MOLDING, VULGANIZING, AND FINISHING RUBBER BOOTS 0R SHOES.

APPLICATION FILED APR. 26, 1907.

4 SHEETS-SHEET 1.

M WM

No. 896,224. PATENTED AUG. 18, 1908.

- J. W., v.- MASON..

APPARATUS FOR MOLDING, VULGANIZING, AND FINISHING RUBBER BOOTS 0R SHOES.

APPLIOATIiON FILED 41133.26, 1.907. 4 SHEETS SHEET BI PATENTED AUG. 1a 1908. J. W. v. MASON.

APPARATUS FOR MOLDING,

VULGANIZING, AND FINISHING RUBBER BOOTS 0R SHOES;

APPLICATION FILED APR. 26, 1907.

4 BHEET8-SHEI1T 4.

I m1 TED STATES PATENT OFFICE.

' JOHN WILLIAM VICTOR MASON, Ol MANCHESTER, ENGIANI).v

APPARATUS FOR MOLDING, VULCANIZING, AND FINISHING RUBBER BOOTS OR SHOES.

Specification of Letters Patent...

Patented Aug. 18, 1908.

Application filed April 26, 1907. Serial No. 370,514.

England, have invented a new and useful Apparatus for Molding, V ulcanizing, and

Finishing Rubber Boots 01' Shoes, of which the following is a specification.

This invention relates to mechanism for molding, vulcanizing, and finishing rubber boots or shoes, and has for its object 'to pro vide snnple and effective means for the purpose, as hereinafter described.

. In carrying out my improvements, I pro vide apparatus of the character illustrated in the accompanying drawings, wherein.

Figure 1. is a vertical section, partly in elevation of one form of the invention, and Fig. 1-. a similar section at right angles therei to with the lower parts omitted, Figs. 3 and 4. are a side and end elevation respectively, of the upper portion of the a paratuse Fig. 5. is a plan view, half elevat1on, half section and Fig. 6. is a detail view hereinafter to be described. 1

In the present example, the framing of the apparatus consists mainly of a base-plate a, supporting posts I), and a top frame comprising side-pieces c, tie-rods d, and adjustable braces e.

The mold is formed of three parts, namelyz-side molds and a sole mold each part being provided witha suitable steam chamber 7c. Z. and 'm. respectively, for vulcanizing purposes, and to which chambers steamnlay be admitted by any convenient means.

The side molds proper g. which together with their steam chambers k. l. are mounted in carriages 2. 3. respectively, are capable of being moved togethenor apart, laterally, as

hereinafterdescribed, lugs or equivalent a,

' or lowered by a hydraulic cylinder noperating in manner as will be wellunderstood, in conjunction with a hydraulic piston s niounted on the bed-plate a, or' otherwise.

said,

Fluid may be admitted to and witlulrawn from the-cylinder by well known meansl The yoke-or follower p, is provided with jaw extensions q forming a clasp, to grip the lower edges of the side molds when the latter are in a closed position, and, mounted upon such yoke, or traveling therewith, are cam plates t. u. grooved or channeled to receive the projecting lugs n, of the side molds.

The side braces c, at the top of the apparatus are adjusted to fit the upper edges of the closed side-molds, and in that position are securely bolted or attached to the fram ing. To insure the side-molds fitting together accurately in the closed position,- 'I

provide means such as are illustrated in Figs.

5 and 6. whereby the carriages maybe ad justed in relation to the lugs n,'which are used to bring such molds together.

Upon the two sides of'eaeh carriage are projections 4. forming grooves for theslidingtherein of bars 5.. hearing the lugs 24.. afore- These bars are slotted at 6, for the rece tion 'ofthe screws 7 which secure them to the carriage so that on loosening these screws, the desired adjustment maybe offected. The bars 5, carry projections 8, at their outer extremities, to en able screws 9 to bear uponthe carriage and retain the adjusted position. The said bars5 project within and ride upon the ways in the frame.

The operation of the molds is as follows:- Supposing the shoe or the like, to be placed in position upon the sole mold, llnid is admitted to the cylinder 1', which thereupon rises, carrying the yoke p, and the grooved cam-plates t. .u. wlth it.

The angular grooves, actin upon thelugsn, of the side molds, draw tie said molds. together, and, I

as the same are closed, the yoke .p,.-('o'lncs in contactiwitli the sole mold, which thereupon rises .inte-the'closed position the.jaws of the yoke meanwhile gripping the lower edges of theside molds. Further rise of the cylinder carries the eombinedmolds upward, so that the top ed es of the side molds are forced "Wltlllnthe races e, and against stops '2',

as shown-inFig. 1. The molds. are-tins sccurely locked together, against internal pressure, and are allowed to so remain while the vulcanizing and molding operation is in progress, after which, the cylinder is caused to descend. The side molds are withdrawn from the braces e, their lugs n, again resting were lifte Iot her fluid under pressure, ora mobile "sub-' more solid substance is interposed, and in ugwardmovement of the piston, and thus -ated-. In some cases, I may provide an extensible covering' -b'etween the shoe-and 'the last, or otherwise within the shoe, to the inmay be distended seas to effect more intimate contact with the molds When com-. 20

.cases'where distribution by the outside presdepail'ting fromi'the nature of the invention. 4

upon the uide's or ways jyfrom which they on the upistroke. Descent con.- tinues, and the yoke is lowered, releasing the When the side molds are fully apart, the finished shoe maybe removed, and further work substituted. 7 V

'1 Means maybe provided, if ;desired,.for au-- tomatically openmgand closing the steam passages to the molds, as the latter are operterior of-which covering I may admit air'or stance such as fine sand, whereby the shoe pressed fluid. isempioyed, I may provide a suitable conduit or connections to enable the desired inflation tobe effected, but where a sure oi-themolds is not deemed sufiiclent, and-a ram' of. piston is provided to exert ressure upon such mobilesubstance, I preerto bring the outerextremity of such is-' ton (illustrated at v.) beneath a swiveled ar 2w. which, bein' mounted on the braces e, or otherwise fixe to. the framing, resists the sets the desired compression and distributionof the mobile substance aforesaid, hile the molds are being brought into the oper ative position; i

The bar '10. 'may be-removable otherwise than by being swiveled, but in. the present instance, when the molds are to be opened, it may be hrown over upon its pivots, to em able the work to be'removed, I I

Asbestos, orother heat resisting. ackingmabe. laced between the-steanip amber wa ls an the carriages2. 3. and yoke 11' to prevent radiation of heat to some extent, and other detail variations may be made without 1. In apparatus of the'characterherein in-' dicatefd, the combination with a frame of side molds, a sole mold, a movable support for saidsole mold, a movable'clas' adapted to engage the lower edges of the c osed side,

molds, substantially as setiforth. side molds which are then-drawn apart by the downward movement of the cam-plates.

dicated, t work su port, a three part vulcanizing mold,- means or heating each part of such mold,

arts overthe sole mold, a mo 5 .to engage the lower edges of-the.

set orth. v

In witness whereof I have hereunto setmy.

ed, to receive-the upper edgesof said jside 2. In a paratus of' the character herein in dicated, t e combination with a frame of a' movable three part mold, a core. of mobile materialsituated within said mold, a plun- '60 ger projecting within, said core," and a bar mounted on said frame and in contact'with said plunger,-substantially as set forth.

3. In a paratus of the character herein indicated, t e combination with a frame of a mounted in connection with said ram and r engaging with-said side molds, a clasp in conbraces on saidirame, adapted to receive the upper edges of said side molds, substantially 4.v In a paratus of the character herein 'inbe combination with a; frame. of a means for closing the two'side \iable clasp a apted to eniglaigel the lower. edges of the closedside mold-s, ,7 e

braces on said frame, adapted to re-' ceive thempper edges of said molds; and a clas' and p 5. In a paratus of the character herein indica'ted, t e combination with a-frame 'of a 1 core with collapsible vwalls inclosing a dis:

placeable substance, athree part vuloanizinp mold, means "for heating-each part of suc i mold, means for closing the two side parts over the sole mold, a movable clasp adapted molds fixed braces on said frame, adaptedto sole mold support adapted-to move the said osed side receive the upper: edges of, said molds, and a sole mold support a clas and combined molds,

substantially as hand in'presence of two witnesses.-

' JOHN WILLIAM VICTOR MASON. Witnessesa' Q ARTHUR GADD, THOMAS PARTINGTON,

' apted .to move the said 65 ram, side molds, a sole mold, a support for said sole mold, mounted on-said ram, cams- 1 

